PNG size reducer.

GS_Master

I have noticed a couple of threads on reducing picture size and i'm going to bring that together and tell you how i got a 20mb gamesalad game to 4mb!
So first I would download This http://dl.dropbox.com/u/26048107/Archive.zip
then unzip the file and you should get 2 programs. image optim and image alpha.
So here are the steps

1. Copy The folder containing all the pictures. (So You Can Compare Before and After)
2. upload them to http://tinypng.org/
3. download the slimmed files
4. Run ImageOptim
5. Select all your slimmed images and drag them into the ImageOptim window.
5.5 Wait.......
6. Use Finder to find the FOLDER that contains ImageAlpha.app
7. Right click the FOLDER and Copy Path > Terminal Path
8. Run Terminal and Type 'cd ' (lower case, with a space after) then Cmd+V to paste the path, then Enter
9. Now copy and paste this into terminal...
ImageAlpha.app/Contents/Resources/pngquant -v -speed 1 -force -ext .png

....make sure you put a SPACE at the end, after .png
10. now drag all your images into the terminal. wait. and press enter.

P.S post your results below!

Thank you for your time.
Cheers! wafflemanz.

LordNasty

Wow. Thanks for sharing!!

GS_Master

No problem!
Cheers!

OskarDeveloper

Neat

GS_Master

Thanks!

SnapFireStudios

Interesting, i'll try it out and let you know how it works out. Does the quality reduce, or is this one of those tricks that cuts back on unneeded files without messing with resolution?
- Thomas

GS_Master

it (most of the time) doesn't affect resolution

Bad wolf Guy

My game is 7mb so maybe I shouldn't use it incase people think there is nothing in the game

Socks

it (most of the time) doesn't affect resolution

This process has no effect on image resolution.

The first process (Tinypng) does exactly the same as the last process (ImageAlpha) - they both reduce colour depth - I can't see why you'd want to do this twice - personally I'd tempted to lose the first stage.

SnapFireStudios

I just tried TinyPNG, and it doesn't really make a difference if it's small, but once you blo it up, you can tell. It doesn't really look bad, just more limited colors than the original. I do think I can use it for some of the images in my game.
- Thomas

debch

Try http://compresspng.com
it's better
even for tinipng's sample image it produces smaller size